River The Joni Letters Herbie Hancock

Already a Grammy winner, Herbie Hancock is back for more with his study of Joni Mitchell music. Featuring duets with Norah Jones, Tina Turner, Corinne Bailey Rae and Joni Mitchell herself, this blues album is not to be missed. The Amazon.com exclusive version of Herbie Hancock's Grammy-nominated album features bonus tracks heard nowhere else.
UPDATE: A surprise win for Herbie Hancock at the Grammys! Go Herb!